| HDC Part # | Jaguar Part # | Piston Size | Applicable Chassis Numbers | Cost |
| 8777-14 | 9071 | 2 1/4" | 1J.50001 and subsequent 1J.80001 and subsequent |
$219 |
| 8777-18 | 8777 | 2 1/8" | $209 | |
| 8778-12 | 8816 | 1 1/2" | $209 | |
| 8778-58 | 7847 | 1 5/8" | $219 |
Standard size cylinders for Model 340 Jaguars (square brake pads) are 8777-18 on the front calipers, and 8778-12 on the rear. Oversize cylinders (8777-14 front, and 8778-58 rear) will provide approximately 10-15% greater force on the brake rotor, decreasing the required brake pedal pressure during braking, and potentially shortening stopping distances.
| HDC Part # | Jaguar Part # | Item Description | Cost | |
| 3824BV | Bleeder Valve | 1J.80001 and subsequent |
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| 316BPL | Left Side Bridge Pipe | $17.50 | ||
| 316BPR | Right Side Bridge Pipe | $17.50 | ||
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